I am new to this planted tank. I am now having 3 kg. co2 cylinder, with needle valve, set up. And crossed one month.
The adjustment of the CO2 bubbles are not constant and always stops intermittently.
Request to clarify the following questions.
1. Why regulators are used and what is single stage and double stage
2. If we use which one we have to select i.e, single stage or double stage
3. Which is the best make in the above two regulators
4. What is solenoid valve and why we should use
5. Is it a must or option
6. If we use which is the best solenoid valve

Information, advice, recommendations from the IAH members are invited.
Thank you all.
regards
radjanair

1. Why regulators are used and what is single stage and double stage
--Regulators are used to stabilize the direct pressure from the cylinder. A more detailed information about single stage and dual stage regulators can be read here.

2. If we use which one we have to select i.e, single stage or double stage
--For our aquarium needs a single stage is more than enough if we consider the cylinder size less than 5kg.

3. Which is the best make in the above two regulators
--I would go for ESAB, but again such heavy duty stuff is not that required.

4. What is solenoid valve and why we should use
--It is a electric valve which shuts/opens your CO2 flow with the touch of a button. The use is mostly when we tend to switch off CO2 after lighting hours and switch on with the light.

5. Is it a must or option
--Nope. If you plan to run your CO2 24*7 then a solenoid valve is not required.

6. If we use which is the best solenoid valve
--There varieties available in the market. But I would prefer TECHNO as more than sufficient for our usage.

Last edited by ruchit on Sun Dec 09, 2012 1:03 pm; edited 1 time in total

I have used Esab long back and the product is no doubt excellent. I am currently using Yamato and its service is also so far good. I am not sure where in Hyderabad you can find these but I guess any gas filling shops can help you with that or any hobbyist from Hyderabad. I have PMed you the cost of it in Bangalore.

Radjanair : Please dont feel that I am picking on you or anything but you should have continued this conversation in your other previous thread which covers similar topics. This is considered good forum etiquette so that all the information is together in one thread only and is easy for others with similar questions to refer to.

A dual stage regulator is prefered mostly when you are using a fire extinguisher cylinder for your CO2 which ahs a tube inside it that goes to the bottom. Because of this when the cylinder is almost over it causes all the remaining gas to rush out at a faster rate which might kill your fish in case a single stage is used. If using a double stage, this does not happen.

I would suggest going for a single stage with needle valve. Yamato is a brand that is good value for money and quite reliable.

In solenoids I would personally avoid Techno as I have had leaking problems with 2 of them

I am new to this planted tank. I am now having 3 kg. co2 cylinder, with needle valve, set up. And crossed one month.
The adjustment of the CO2 bubbles are not constant and always stops intermittently.
Request to clarify the following questions.
1. Why regulators are used and what is single stage and double stage
2. If we use which one we have to select i.e, single stage or double stage
3. Which is the best make in the above two regulators
4. What is solenoid valve and why we should use
5. Is it a must or option
6. If we use which is the best solenoid valve

Information, advice, recommendations from the IAH members are invited.
Thank you all.
regards
radjanair

Which regulator are you using, inconsistent rate is mainly due to problem with regulator or a faulty needle value.
Double stage regulator are always better than single stage, they prevent the phenomena known as "Co2 dump", this happens when Co2 cylinder is nearing end as already explained.

Hi,
As suggested by Bro. Saikumar, Hyd. I am affixing the photos of the co2 cylinder and needle valve I am using now. Please suggest which regulator with solenoid valve will be suitable to my 3kg co2 cylinder.

Hi,
Sandeep Raghuvanshi I am not using any regulator I am using only co2 cylinder, needle valve, bubble counter and the co2 outtlet to inlet of canister.

with regards
radjanair

Please stop using such an arrangement immediately, using a co2 cylinder without regulator is very dangerous.
Co2 is filled at very high pressure about 58-60 kg/m2, the output required in tank is about 1 kg/m2.
The regulator is built to handle this pressure.
Needle valves are never meant such high pressure, maybe it is already damaged.
Cylinder-----Regulator- Needle value-------bubble counter------diffuser.

Hi,
Sandeep Raghuvanshi
As suggested by Bro. Saikumar, Hyd. I am affixing the photos of the co2 cylinder and needle valve I am using now. Please suggest which regulator with solenoid valve will be suitable to my 3kg co2 cylinder.
http://s1336.beta.photobucket.com/user/radjanair/library/
Please give some suggestions that which make of double gauge double stage regulator with solenoid valve is suitable for my co2 cylinder

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